How is everything? I think the last time you were around you were leaning into therapy to talk more about relationships and such?
On your question here: At first, it can be scary if our partner has more sex or dating experiences than us, but soon enough it usually becomes clear that it doesn't actually mean they are necessarily more wise or capable when it comes to those things. Somebody can easily make a number of assumptions based on previous relationships and have to relearn everything because their connection with a new person is different.
There are insights we gain from every part of our lives and they can all be relevant to dating, and life doesn't stop just because we haven't been dating.
The other side of this is that if we are dating a suitable partner who has positively benefited from previous experiences, this should be an asset not a threat. If they've really put in the practice to learn what they can from past mistakes then this could (in theory) make them a nicer person to date... However, if someone is deliberately using their experience to make you feel intimidated however, this is a red flag!
In either case the fact that you may be new to some things is not the deciding factor. You still get to say something is not cool, or walk out of a situation if you don't like what is happening.
"In between two tall mountains there's a place they call lonesome.
Don't see why they call it lonesome.
I'm never lonesome when I go there." Connie Converse - Talkin' Like You